Takahashi,A , , Himuro,K , , Baba,S , , Yamashita,Y , and Sasaki,M . "Comparison of TOF-PET and Bremsstrahlung SPECT images of Yttrium-90: A Monte Carlo Simulation Study", Asia Oceania Journal of Nuclear Medicine and Biology, 6, 1, 2018, 24-31. doi: 10.22038/aojnmb.2017.9673